[FIX] hr_contract: unsual days of the correct company

When we create public holidays, we can create global ones that will
apply to all 'Working Hours' of the company.

When you create such a public holiday, it is displayed as a an unusual
day for all employees of all companies that have a contract.

The issue comes from the the fact that we use a sudo to get the contract
of the employees and then we call '_get_unusual_day' on the Working
Hours of the contract in sudo. So when we catch the global ones (wihtout
Working Hours) it takes them from all companies as we are in sudo and it
won't apply the record rule.

closes odoo/odoo#144981

X-original-commit: 349762e28461f795d4e8bd3110556b5a80f92d49
Signed-off-by: Pierre Masereel (pim) <pim@odoo.com>

addons/hr_contract/models/hr_employee.py

@@ -134,7 +134,7 @@ class Employee(models.Model):
         for contract in employee_contracts:
             tmp_date_from = max(date_from_date, contract.date_start)
             tmp_date_to = min(date_to_date, contract.date_end) if contract.date_end else date_to_date
-            unusual_days.update(contract.resource_calendar_id._get_unusual_days(
+            unusual_days.update(contract.resource_calendar_id.sudo(False)._get_unusual_days(
                 datetime.combine(fields.Date.from_string(tmp_date_from), time.min).replace(tzinfo=UTC),
                 datetime.combine(fields.Date.from_string(tmp_date_to), time.max).replace(tzinfo=UTC)
             ))